<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form name="input" action="html_form_action.php" method="get">
Username: <input type="text" name="user">
<input type="submit" value="Submit">
</form>
</body>
</html>